142605520 has 160 divisors (see below), whose sum is σ = 377975808. Its totient is φ = 49741824.

The previous prime is 142605481. The next prime is 142605523. The reversal of 142605520 is 25506241.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142605523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1470112 + ... + 1470208.

Almost surely, 2^142605520 is an apocalyptic number.

142605520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 142605520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (188987904).

142605520 is an abundant number, since it is smaller than the sum of its proper divisors (235370288).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

142605520 is a wasteful number, since it uses less digits than its factorization.

142605520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 197 (or 191 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 142605520 is about 11941.7553148605. The cubic root of 142605520 is about 522.4508565457.

The spelling of 142605520 in words is "one hundred forty-two million, six hundred five thousand, five hundred twenty".